THE CUTTING EDGE IN SCREW TECHNOLOGY⁸

Titanium Cannulated Screw Portfolio

THE CUTTING EDGE IN SCREW TECHNOLOGY⁸

Titanium Cannulated Screw Portfolio

CCHS and CSS+ offer surgeons uncompromised precision through:

Innovative cutting edge for improved cutting efficiency^1-3
Cobalt Chrome Guide Wire for less deflection⁴
Most comprehensive portfolio on the market to address wide range of surgical needs^5-6
Instrument sets are designed to be modular for optimal flexibility⁷

The CCHS and CSS+ Titanium implants are available in a variety of thread lengths and 9 diameters (2.0 – 7.5mm).

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Key Resources

Surgical Technique Guide

CCHS Guide

CSS+ Guide

Inventory Control Forms

Secondary
Relief Surface

Rake Surface

Primary
Relief Surface

Innovative Cutting Edge

Three uniquely angled surfaces combine to form an innovative cutting edge designed to⁹:

Reduce insertion force
Minimize the need for pre-drilling

Traditional self-drilling / self-tapping screws have a straight tip vs CCHS/CSS+ angled tip. Angled cutting tips allow for efficient screw insertion into bone.

Features & Benefits

Cobalt Chrome Guide Wires

Stiffer guide wire results in less deflection during screw insertion to maintain intended trajectory.¹⁰

Trocar, threaded & fluted tip options available, depending on guide wire diameter.

Most Comprehensive Portfolio

CCHS & CSS+ have the widest range of cannulated screws on the market¹¹:

CCHS & CSS+ diameters include 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.5, 6.5, and 7.5mm
CCHS lengths range from 10 – 140mm, including short and long partial thread options
CSS+ lengths range from 10 – 180mm, including short, long and full thread options

Quick Insertion Screws

Self-drilling/self-tapping 2.0 mm twist-off style screws offered in lengths 11 mm to 18 mm, provided with unique Easy Loader Screwdriver designed to prevent premature post breakage of the screws.¹²

MECHANICAL COMPARISON

CCHS & CSS+ vs. Competitors

The DePuy Synthes CCHS and CSS+ implants have a positive rake angle at their cutting tip, while generic compression screws feature a neutral rake angle. Their cutting tip differentiates the CCHS and CSS+ implants from generic compression screws and contributes to their superior cutting performance.

This study demonstrates that DePuy Synthes CCHS and CSS+ have superior cutting performance when compared to Stryker Fixos/Fixos 2, Stryker Asnis Micro/Asnis III and Acumed Acutrak 2 Micro screws of comparable size when inserted into the same medium.^13-15

Pictured Left: Competitor Neutral Rake Angel

Pictured Right: CCHS/CSS+ Positive Rake Angel

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Resources

Video 1 of 2

Resources

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CCHS System Overview

00:52

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CCHS Scaphoid Fracture Technique Video

02:05

Enhanced Design Features

Head with Cutting Flutes

Facilitates countersinking of screwhead
*CCHS only

StarDrive™ Recess

Facilitates screw insertion and extraction

Reverse-Cutting Flutes

Facilitates screw removal

Washers with Countersunk Feature

For implant profile
*CSS+ only

References

DePuy Synthes Report: Memo CCHS Engineering Rationale. 2019. Windchill #0000286734. DePuy Synthes Report: CSS+ Feature Memo. 2021. Windchill #0000313639
DePuy Synthes Report: CCHS Screw Cutting Performance Test. 2020. Windchill #0000288244.* DePuy Synthes Report: CCHS Screw Cutting Performance Test. 2020. Windchill #0000288743* DePuy Synthes Report: CCHS Screw Cutting Performance Test. 2020. Windchill #0000288243*
DePuy Synthes Report: CSS+ Distal Thread Cutting Efficiency Test Method. 2021. Windchill #0000313073.* DePuy Synthes Report: CSS+ Distal Thread Cutting Efficiency Test Method. 2021. Windchill #0000313072*
DePuy Synthes Report: Memo Guide Wire Material. 2019. Windchill #0000287828.* DePuy Synthes Report: Guide Wire Stiffness Memo. 2021. Windchill #0000313649.* Guide Wire Stiffness Memo. CoCr Guide Wire compared to SS Guide Wire of same diameter.
DePuy Synthes Report: Market Analysis. 2019. Windchill #0000286547. Research was performed (June, 2019) comparing cannulated headless screw offerings among all main competitors who offer this product line. Main competitors were defined based on market report Medtech 360 Trauma Devices Market Analysis US (2018). Broadest is defined as the widest range or the most comprehensive portfolio of available cannulated headless screw diameters currently marketed.
DePuy Synthes Report: Market Analysis. 2022. Windchill #0000316013. Research was performed (February, 2022) comparing cannulated screw offerings among all main competitors who offer this product line. Main competitors were defined based on market report 2020 DRG US Trauma Market Report. Broadest is defined as the widest range or the most comprehensive portfolio of available cannulated screw diameters currently marketed. DePuy Synthes Report: CSS+ System Content List. 2021. Windchill #0000289396.
DePuy Synthes. Screw and System Design Feature Memo. 21st Oct 2021. Windchill #0000313639. DePuy Synthes Screw and System Design Feature Memo. Aug 7th 2019. Windchill #0000286734.
DePuy Synthes Patent Application: Zastrozna A. Angled flutes in cannulated bone screws. Pub. No.: US 2018/0303529 A1. 25th Oct., 2018.
DePuy Synthes. Screw and System Design Feature Memo. 21st Oct 2021. Windchill #0000313639. DePuy Synthes. Screw and System Design Feature Memo. Aug 7th 2019. Windchill #0000286734.
DePuy Synthes Guide Wire Stiffness Memo. 28th Apr 2020. Windchill #0000287828. DePuy Synthes Guide Wire Stiffness Memo. 21st Oct 2021. Windchill #0000313649. CoCr Guide Wire compared to SS Guide Wire of same diameter.
DePuy Synthes. Competitive Analysis. 22 February 2022. Windchill #0000316013. DePuy Synthes. Competitor Analysis. 16th Dec 2020. Windchill #0000286547.
DePuy Synthes. Functional & Design Requirements and Verification & Validation Matrix‐ICDS. 17th Jan 2020. Windchill #0000233284.
DePuy Synthes Screw Cutting Performance Memo. 29th Jan 2020. Windchill #0000288513
DePuy Synthes Screw Cutting Performance Test Method and Report. 17th November 2021. Windchill #0000313072.
DePuy Synthes Cutting Performance Test Method and Report. 6th December 2021. Windchill #0000313073. Bench testing may not be indicative of clinical performance. Five cannulated compression screw systems were compared: DePuy Synthes CCHS and CSS+, Stryker Fixos/Fixos 2, and Stryker Asnis Micro/Asnis III and Acumed Acutrak 2 Micro. Screws were assigned to different test groups based on screw diameter: Group 1 contained 2.5 and 3.0 mm diameter screws, Group 2 included 4.0 mm screws and Group 3 was comprised of 6.5, 7.0 and 7.5 mm screws

* Bench testing may not be indicative of clinical performance.

Indication Statement

Cannulated Compression Headless Screws (CCHS)
The DePuy Synthes Cannulated Compression Headless Screws are indicated for use in bone reconstruction, osteotomy, arthrodesis, joint fusion, fracture repair, and fracture fixation of bones appropriate for the size of the device. Screws are intended for single use only.

Cannulated Screw System Plus (CSS+)
The DePuy Synthes Cannulated Screw System Plus Screws are indicated for use in bone reconstruction, osteotomy, arthrodesis, joint fusion, fracture repair, and fracture fixation of bones appropriate for the size of the device. Screws are intended for single use only.

Contraindications

The implant should not be used in a patient who has current, or who has a history of:

Local or systemic acute or chronic inflammation;
Active infection or inflammation;
Suspected or documented metal allergy or intolerance

Consult the Cannulated Screw System Plus eIFU at cssplus.info for more information.

136273-220617 DSUS

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Titanium Cannulated Screw Portfolio

Titanium Cannulated Screw Portfolio